Electric converter



(No Model.)

0. B. SHALLENBERGER & H. M. BYLLESBY. ELEGTRIO CONVERTER.

No. 387,013. Patented July 81, 1888.

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UNITED STATES PATENT ()rrrca OLIVER B. SHALLENBERGER, OF ROCHESTER, ANDHENRY M. BYLLESBY, OF PITTSBURG, ASSIGNOR-S TO THE YVESTINGHOUSEELECTRIC COM PANY, OF PITTSBURG, PENNSYLVANIA.

ELECTRIC CONVERTER.

SPECIFICATION forming part of Letters Patent No. 387,013,

dated July 31, 1888.

Application tiled September 1, 1887. Serial No. 248,431. (X0 model.)

To all whom it may concern.-

Be it known that we, OLIVER B. SHALLEN- BERGER and HENRY M. BYLLESBY,citizens of the United States, residing, respectively, in Rochester, inthe county of Beaver, and Pittsburg, in the county of Allegheny, both inthe State of Pennsylvania, have invented certain new and usefulImprovements in Electric Converters, of which the following is aspecification.

The invention relates to the construction of boxes for containingelectric converters, and to the means provided for securing electricconnections with the converters placed therein.

The invention consists, in general terms, in organizing the parts in thefollowing manner: The main portion of the converter-box is preferablyconstructed in two parts, one of which is designed to be secured tosuitable supports, while the other is formed with compartments forreceiving the terminals of the primary and secondary coils of theconverter. These compartments contain suitable circuit-controllingdevices mounted upon plates of n0n-conducting material. The plates areformed in this instance of glass or other vitreous material, and one ofthem is provided with three binding screws or posts for receiving therespective ends of a coil, and a third conductor leading from a pointintermediate in the length of the coil. The respective binding'screwsare connected through fusible strips with coupling devices, whereby theymay be connected with other binding-posts receiving the outsideconductors, which are designed to be connected with the translatingdevices or other appara tus. Between the sets of binding-posts thereextend lugs formed upon the non-conducting plate, and these serve toprevent accidental electrical connections between them.

In the accompanying drawings, Figure 1 is a front view, partly insection, of a converter box; and Fig. 2 is aside elevation, also partlyin section.

Referring to the figures, A represents the rear section andA the frontsection of the box, and B the converter placed therein. The section A isdesigned to be supported in any convenient manner. The front section, A,is

bolted or otherwise securcl y fastened to the section A. The section Acarries two compartments, D and D formed by annular webs thrown out fromthe casting. The compartment D is designed in this instance to receivethe terminals of the primary conductor. The terminals of the secondarycoil S of the converter are led through openings Sinto the compartment DThis compartment is provided with a non-conducting plate, E,whichispreferably of glass. the secondary coil are connected with bindingscrews f and f respectively, which pass through the plate. A thirdconductor, s", leading from a central point in the length of thesecondary conductor S, is connected with a third bindiiigpost, f, whichis preferably be tween the bini'ling-postsf" and/" The postsf, f", and fare respectively connected by means of fusible strips g, {1 and g withthree binding posts or switchplatcs, h,h, and it. These switch platesare respectively provided with contact-plates m, m, and m, with whichthey may be connected by corre sponding switch-plugs, j, j", and j.Condnctors 0', 0 and o are led from the respective plates m, of, and orthrough suitable openings, w, w", and w,-which are lined by thimbles 1',1- and r, of non-conducting material.

Between the strips {1' and g and the corre spondingbinding-postsandswitch-platcsthere extends a lug, t, and between thestrips 5 and g asimilarlug, i Theselugs serve to securely separate theconductors from each other and prevent accidental short circuits frombeing formed. The lugs are preferably integral with the plate itself.The several plates are here shown with their switclrplugs jj' jinserted; but it will be understood that the connections may be made andinterrupted as desired, so that the connections may be made with aportion of or with the entire secondary coil as desired for differentpurposes. The plate is useful, also, in connection with single-coilconverters, and it may be used in connection with the primary coils.

lVe claim as our invention 1. The combinatiomwith a box for receiving anelectric converter,of a compartment receiv- The terminals sand s of 60ing the terminals of a coil thereof, a non-conducting plate within suchcompartment, three binding-posts for receiving conductors leadingrespectively from the terminals and an intermediate point in the lengthof a coil of the con verter, binding-posts for receiving the terminalsof the outside conductors, fusible strips and circuit-controllingdevices applied thereto, and lugs of non-conducting material formed uponsaid plate, separating the different sets of binding-posts,substantially as described.

2. In a converter-box, a plate for receiving the terminals of theeonvertercoil, formed of vitreous material, three binding-posts carriedthereby, fusible strips respectively connected at one end with saidbinding-posts, switch- OLIVER B. SHALLENBERGER. HENRY M. BYLLESBY.

Witnesses:

W. D. UPTEGRAFF, CHARLES A. TERRY.

